CVE-2026-49472

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIX(prologTok)(), in libs/xmlrpc-c/lib/expat/xmltok/xmltok_impl.c, which was cloned from an outdated and vulnerable version in libexpat/libexpat. The function did not receive the corresponding security patch. This issue has been patched in version 1.11.0.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: github_release, github.
github Patch Available

FreeSWITCH includes a vulnerable function, PREFIX(prologTok)() from libexpat · Advisory · signalwire/freeswitch · GitHub

https://github.com/signalwire/freeswitch/security/advisories/GHSA-4jm3-xpcm-mwwq
github_release Patch Available

FreeSWITCH v1.11.0 Release

Patch available: signalwire/freeswitch v1.11.0

https://github.com/signalwire/freeswitch/releases/tag/v1.11.0

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-25 00:50 UTCEG score recompute
  3. 2026-08-23 11:14 UTCEG score recompute
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  1. 2026-08-08 16:37 UTCEPSS rescore
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  24. 2026-07-26 14:54 UTCEPSS rescore
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  26. 2026-07-25 14:18 UTCEPSS rescore
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  29. 2026-07-23 03:18 UTCEG score recompute
  30. 2026-07-22 14:08 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-49472?
CVE-2026-49472 is a medium vulnerability published on June 9, 2026. FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIX(prologTok)(), in…
When was CVE-2026-49472 disclosed?
CVE-2026-49472 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49472 actively exploited?
CVE-2026-49472 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.3% of all scored CVEs.
What is the CVSS score of CVE-2026-49472?
CVE-2026-49472 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-49472?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49472, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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